Update app.py

app.py

@@ -359,6 +359,7 @@ def generate(
     formatted_prompt = format_prompt(formatted_prompt, history, max_history_turns=5)  # Truncated history
     logging.info(f"Formatted Prompt: {formatted_prompt}")
     stream = client.text_generation(formatted_prompt, temperature=temperature, max_new_tokens=max_new_tokens, top_p=top_p, repetition_penalty=repetition_penalty, stream=True, details=True, return_full_text=False)
+    resp = ""
     for response in stream:
         resp += response.token.text